4.9 Oxidation and reduction of Aldehydes and ketones

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4.9 Oxidation and reduction of Aldehydes and
ketones
2
gt
3
Tollens Test

• Add ammonia solution to AgNO3 solution until
  precipitate dissolves.
• Aldehyde reaction forms a silver mirror.

4
Oxidation of ketones

• Ketones ? no reaction

5
Reduction Catalytic Hydrogenation

• Ketones give secondary alcohols
• Aldehydes give primary alcohols

6

• Reduction aldehyde hydrogen --gt pri. Alcohol
• Form of addition reaction.

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Reduction aldehyde hydrogen

• Break hydrogen bond

8
Reduction aldehyde hydrogen

• Break double bond and use electrons to bond with
  hydrogen.

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Reduction aldehyde hydrogen

• Brief Method

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4.10 Addition of Alcohol

• Hemiacetal and Acetal Functional Groups